I found this postcard in a souvenir shop in Australia recently, and it greatly amused me (click for legible full size).

Australians have come up with some excellent phrases that (sadly) have not made it into general use in British or American English. “Ya flamin’ galah” is perhaps my personal favourite, and will be familiar to anyone who watches Australian soaps. It basically means “you fool” and is best delivered in a broad Australian accent.

Whilst most of the slang on this postcard you’re unlikely to hear in the major urban areas of Australia, I can’t wait to get to the outback (or “the bush”) to see if someone really will call me a drongo and give me an earbashing for having a barney!
For more Aussie slang, see here.